Stability of cypermethrin against a prepared high surface area magnesium oxide

High surface area magnesium oxide was prepared by various methods of preparation using modified dehydration technique. Commercial magnesium oxide was first transformed into its hydroxide. The magnesium hydroxide was heated under high vacuum at different temperatures of 200, 400, 600 and 800 degree C...

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Main Author:	Mohd. Yusoff, Hanis
Format:	Thesis
Language:	English
Published:	2006
Subjects:	QD Chemistry
Online Access:	http://eprints.utm.my/id/eprint/5492/1/HanisMohdYusoffMFS2006.pdf
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spelling	my-utm-ep.54922018-03-07T21:03:12Z Stability of cypermethrin against a prepared high surface area magnesium oxide 2006-06 Mohd. Yusoff, Hanis QD Chemistry High surface area magnesium oxide was prepared by various methods of preparation using modified dehydration technique. Commercial magnesium oxide was first transformed into its hydroxide. The magnesium hydroxide was heated under high vacuum at different temperatures of 200, 400, 600 and 800 degree Celsius and high surface area magnesium oxide was obtained. The activated magnesium oxide sample was labeled as dehydrated magnesium oxide. The same magnesium hydroxide was also calcined at various temperatures and was labeled as dehydrated and calcined magnesium oxide. Finally, the third magnesium oxide sample was labeled as magnesium oxide sol gel, produced by synthesis of Mg turnings to form sol gel solution and was dried using autoclave which will convert to its magnesium hydroxide sol gel. Again, activation using high vacuum will convert magnesium hydroxide sol gel into its high surface area magnesium oxide. To characterize the resulting magnesium oxide samples, several spectroscopic techniques were used which includes Fourier Transform Infra-Red, X-Ray Diffraction, Nuclear Magnetic Resonance and Electron Spin Resonance. For better understanding of the magnesium oxide surface area and morphology, Nitrogen Gas Adsorption and Scanning Electron Microscope, was used. Pyrethrin is the most effective insecticide. However it is not harmful to mammals or humans. Synthetic pyrethroid that is cypermethrin later was developed. Since cypermethrin was sprayed towards furnitures, floors, walls at home and at the agriculture field, thus their stability towards these matrices is important. In this study, the stability of cypermethrin under variously prepared high surface area magnesium oxide effect was studied using Fourier Transform Infra-Red spectroscopy and Gas Chromatography with Electron Capture Detector. For comparison, inert matrix of activated carbon was used. 2006-06 Thesis http://eprints.utm.my/id/eprint/5492/ http://eprints.utm.my/id/eprint/5492/1/HanisMohdYusoffMFS2006.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Mohd. Yusoff, Hanis Stability of cypermethrin against a prepared high surface area magnesium oxide
description	High surface area magnesium oxide was prepared by various methods of preparation using modified dehydration technique. Commercial magnesium oxide was first transformed into its hydroxide. The magnesium hydroxide was heated under high vacuum at different temperatures of 200, 400, 600 and 800 degree Celsius and high surface area magnesium oxide was obtained. The activated magnesium oxide sample was labeled as dehydrated magnesium oxide. The same magnesium hydroxide was also calcined at various temperatures and was labeled as dehydrated and calcined magnesium oxide. Finally, the third magnesium oxide sample was labeled as magnesium oxide sol gel, produced by synthesis of Mg turnings to form sol gel solution and was dried using autoclave which will convert to its magnesium hydroxide sol gel. Again, activation using high vacuum will convert magnesium hydroxide sol gel into its high surface area magnesium oxide. To characterize the resulting magnesium oxide samples, several spectroscopic techniques were used which includes Fourier Transform Infra-Red, X-Ray Diffraction, Nuclear Magnetic Resonance and Electron Spin Resonance. For better understanding of the magnesium oxide surface area and morphology, Nitrogen Gas Adsorption and Scanning Electron Microscope, was used. Pyrethrin is the most effective insecticide. However it is not harmful to mammals or humans. Synthetic pyrethroid that is cypermethrin later was developed. Since cypermethrin was sprayed towards furnitures, floors, walls at home and at the agriculture field, thus their stability towards these matrices is important. In this study, the stability of cypermethrin under variously prepared high surface area magnesium oxide effect was studied using Fourier Transform Infra-Red spectroscopy and Gas Chromatography with Electron Capture Detector. For comparison, inert matrix of activated carbon was used.
format	Thesis
qualification_level	Master's degree
author	Mohd. Yusoff, Hanis
author_facet	Mohd. Yusoff, Hanis
author_sort	Mohd. Yusoff, Hanis
title	Stability of cypermethrin against a prepared high surface area magnesium oxide
title_short	Stability of cypermethrin against a prepared high surface area magnesium oxide
title_full	Stability of cypermethrin against a prepared high surface area magnesium oxide
title_fullStr	Stability of cypermethrin against a prepared high surface area magnesium oxide
title_full_unstemmed	Stability of cypermethrin against a prepared high surface area magnesium oxide
title_sort	stability of cypermethrin against a prepared high surface area magnesium oxide
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2006
url	http://eprints.utm.my/id/eprint/5492/1/HanisMohdYusoffMFS2006.pdf
_version_	1747814597719490560

Stability of cypermethrin against a prepared high surface area magnesium oxide

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